Khyber - Performance after Complete Engine Overhaul

[sayedgulhassan]

How's the performance of profi car engine oils?
Where can i get zic in islamabad?
What should be the change interval?
Which manufacturer gear oil should i use for my car?

[hassantahir2]

Have heard good comments about profi car lubricants but haven't tried them personally. I think it's a german company.
Sorry don't know any dealer's in Islamabad. But you can order online from zicoil.pk and product will be delivered to your doorstep with cash on delivery without any delivery charges.
Normally change interval would be 4000-5000km according to usage conditions.
I have been using ZIC gear oil in my car's and so far i am satisfied with the performance of that.
Viscosity should be SAE-90 OR SAE 75W-85 and it should be API GL-4.

[saboor73]

Cultus

Cultus carby G10 engine don't need high ZDDP oil due to hydraulic lifters so you can choose any 10W-40 oil.

Cultus does need high zddp oil because valve spring are very stiff in g10a

[sayedgulhassan]

I will be doing my engine overhaul or maybe assembly change at rozzzzz workshop motormaniacs in islamabad he has a stock of profi car engine oils which would cost me around 2200 2300 for 3.2 litre for my engine.
Engine overhaul/assembly change is extended to 3 4 days because of paint job

[sayedgulhassan]

Should i use zic 10 40 as hassan bhai recommended in my carby cultus?

[anon71378895]

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[saboor73]

Should i use zic 10 40 as hassan bhai recommended in my carby cultus?

You can use thinner but 10w-40 is good enough

[hassantahir2]

No harm in driving that much.
Just keep varying the speed do not drive at constant speed.

[hassantahir2]

Update on performance after engine overhaul.
The car at the moment is driven 2600 km after overhaul this includes a trip from FSD to ISB and back.
Had first oil changed at 100km poured in ZIC X7000 API-SL.
Performance got much better with first oil change and i was able to feel the difference in engine behavior on acceleration and deceleration.
At about 1650km's after overhaul went to ISB through motorway while going i kept the speed mostly at 105-110km/h and the car ran really well and returned fuel average of 18.3 kmpl. Car used to loose power in salt range before overhaul but this time i didn't felt any difference in performance.
Previously it was like if i was at 80km/h at the start of slope then the car used to go back to 60km/h but this time if i was at 80km/h at start of slope the car maintained the same speed easily.
While returning from ISB to FSD i floored the car at empty patch of motorway and the car went till 140km/h pretty easily but it started taking jerks at 140km/h as if fuel supply is not enough (i think that is due to the secondary jet in Carburetor which i forced my mechanic to change from 119 stock to 105 supplied with carb kit) i got 17.6 kmpl on my return mostly kept the speed between 120-125km/h .
Performance and feel of engine has got even better after the trip. Getting about 11.6-12 kmpl in normal everyday driving.
Will be changing next oil at 3000km.

[sayedgulhassan]

Amazing mileage two weeks ago before car work i tried to calculate 0 to 100 in my cultus it was giving light jerks if floored at the speed of 90 to 100kmph as you know engine was weak is it related to engine weakness or carburator issue?
Should i service the carburator with carb cleaner during overhaul ?

[sayedgulhassan]

Which is the best engine oil for a healthy carby cultus engine according to mileage performance and durability?

[hassantahir2]

Get the Carburetor serviced along with engine overhaul it would be better to get both done at same time.
Jerks could also be due to secondary butterfly in carb not opening.

[sayedgulhassan]

Ok brother carborator service requires carborator kit(which includes gaskit and other things) or just only carborator cleaner spray?(i saw one mechanic cleaning the carborator of corolla with it)
A good mechanic can do the job?or will i have to take it to a good carborator man?

[hassantahir2]

A good mechanic can do it. I got my Carburetor serviced from same mechanic i overhauled my engine from.
You can also buy gaskets for Carburetor separate they are cheap but they are not good quality and they start to leak after short time. Gaskets which come with Carburetor kit are better quality and work for long time without failure.
The cost of Carburetor kit should not be more than 950/-RS. It comes with all the essential Part's needed.
Carburetor cleaner spray would also be required for carb service.
Carburetor service is all about cleaning all the passages in Carburetor properly, adjusting the float level and bingo done... But if butterfly has gone bad (has play) then that part will be made by kharadiya.

[sayedgulhassan]

So should i use the carborator kit as well as carborator cleaner or only carborator cleaner and leave the other things of carborator as such?i shouldnt go for gaskit or carborator kit as it was working good before the engine work

[hassantahir2]

If Carburetor was working fine then no need for service. If it was problematic. Auto choke not working, jerks and other stuff then get it serviced.
In Carburetor service Carburetor is opened and each and everything is cleaned with Carburetor cleaner and only then you will need gaskets and other stuff.
If you don't want the Carburetor to be opened then Carburetor cleaner can just be sprayed in carb throat with engine running it will just clear out any varnish on butterflies then.

[sayedgulhassan]

Auto choke was disabled by an electrician which my mechanic recently told me it vibrates a lot in the morning....About the jerks i mentioned at 90 speed by full trotle maybe cuz my engine was weak and eating oil other wise no issues any advange of cleaning the throat body only?

[saboor73]

Jerking could be due to engine bogging down which could be result of vaccum advancer for ignition timing disabled

[anon71378895]

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[anon71378895]

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